Display panel and mobile terminal

ABSTRACT

A display panel and a mobile terminal each includes a substrate, an anode portion disposed on the substrate, and a first circuit portion and a second circuit portion disposed between the anode portion and the substrate. The first circuit portion is disposed close to a first edge of the anode portion, the second circuit portion is disposed close to a second edge of the anode portion, and both are disposed on opposite sides of a center of the anode portion. A distance between the first circuit portion and the first edge is a first distance, a distance between the second circuit portion and the second edge is a second distance, and an absolute value of a difference between the two is less than a width of the first circuit portion or a width of the second circuit portion.

FIELD OF INVENTION

The present disclosure relates to the technical field of display,particularly to manufacture of display devices, and more particularly toa display panel and a mobile terminal.

BACKGROUND

An active matrix organic light-emitting diode (AMOLED) display panelindependently controls light emission of each pixel through a transistorarray, and has advantages of high brightness, high resolution, highefficiency, and easy realization of large-area display.

Currently, under an anode layer of the AMOLED display panel, there aremetal wires located at different layers and asymmetric with respect to acenter of the anode layer. Therefore, a surface of the anode layercomprises asymmetrically distributed convex structures, which causes alight-emitting angle of a light emitted by a light-emitting devicelocated above the anode layer to shift, so that a brightness orchromaticity viewing angle of the AMOLED display panel is asymmetric,thereby reducing display quality.

Therefore, the brightness or chromaticity viewing angle of the currentAMOLED display panel has defects and needs to be improved.

SUMMARY OF DISCLOSURE

A purpose of the present disclosure is to provide a display panel and amobile terminal, so as to solve a technical problem of low displayquality caused by defects in a brightness or chromaticity viewing angleof an current AMOLED display panel.

The present disclosure provides a display panel comprising a substrate,an anode portion disposed on the substrate, and a first circuit and asecond circuit disposed between the anode portion and the substrate. Thefirst circuit is disposed close to a first edge of the anode portion.The second circuit is disposed close to a second edge of the anodeportion. The first circuit comprises a first circuit portion disposedcorresponding to the anode portion. The second circuit comprises asecond circuit portion disposed corresponding to the anode portion. Thefirst circuit portion and the second circuit portion are disposed onopposite sides of a center of the anode portion. A distance between thefirst circuit portion and the first edge is a first distance. A distancebetween the second circuit portion and the second edge is a seconddistance. An absolute value of a difference between the first distanceand the second distance is less than a width of the first circuitportion or a width of the second circuit portion. A distance between thefirst circuit portion and the center of the anode portion is a thirddistance. A distance between the second circuit portion and the centerof the anode portion is a fourth distance. An absolute value of adifference between the third distance and the fourth distance is lessthan the width of the first circuit portion or the width of the secondcircuit portion. The first circuit further comprises a third circuitportion protruding beyond the anode portion. The width of the firstcircuit portion and the width of the second circuit portion are lessthan a width of the third circuit portion.

In an embodiment, an absolute value of a difference between the width ofthe first circuit portion and the width of the second circuit portion isless than an absolute value of a difference between the width of thethird circuit portion and the width of the second circuit portion.

In an embodiment, the first circuit portion and the second circuitportion are disposed axisymmetrically with respect to a centerline, thecenterline passes through the center of the anode portion. The anodeportion is axisymmetric. The centerline is an axis of symmetry of theanode portion.

In an embodiment, the display panel further comprises a pixel circuitthat comprises a driving transistor and a light-emitting deviceelectrically connected to the driving transistor. The first circuittransmits a working voltage to the light-emitting device. The secondcircuit transmits a data voltage to the driving transistor.

In an embodiment, the first circuit portion comprises a firstsub-circuit portion located at a first circuit layer and a secondsub-circuit portion located at a second circuit layer. The secondcircuit portion is located at the first circuit layer or the secondcircuit layer. The first sub-circuit portion is electrically connectedto the second sub-circuit portion. An absolute value of a differencebetween a width of the first sub-circuit portion and a width of thesecond sub-circuit portion is less than an absolute value of adifference between the width of the first circuit portion and the widthof the second circuit portion.

In an embodiment, the driving transistor comprises an active portion, afirst gate portion located above the active portion, a second gateportion located above the first gate portion, and a source and drainportion located above the second gate portion and at the first circuitlayer.

In an embodiment, the second circuit layer is disposed between the firstcircuit layer and the anode portion, and the second circuit is locatedat the second circuit layer.

In an embodiment, a portion of the first circuit protruding beyond theanode portion comprises a third sub-circuit portion located at a thirdcircuit layer and a fourth sub-circuit portion located at a fourthcircuit layer. The third sub-circuit portion is electrically connectedto the fourth sub-circuit portion. The first circuit portion and thesecond circuit are both located at the third circuit layer or the fourthcircuit layer.

The present disclosure further provides a display panel comprising asubstrate, an anode portion disposed on the substrate, and a firstcircuit and a second circuit disposed between the anode portion and thesubstrate. The first circuit is disposed close to a first edge of theanode portion. The second circuit is disposed close to a second edge ofthe anode portion. The first circuit comprises a first circuit portiondisposed corresponding to the anode portion. The second circuitcomprises a second circuit portion disposed corresponding to the anodeportion. The first circuit portion and the second circuit portion aredisposed on opposite sides of a center of the anode portion. A distancebetween the first circuit portion and the first edge is a firstdistance. A distance between the second circuit portion and the secondedge is a second distance. An absolute value of a difference between thefirst distance and the second distance is less than a width of the firstcircuit portion or a width of the second circuit portion.

In an embodiment, the first circuit further comprises a third circuitportion protruding beyond the anode portion, and the width of the firstcircuit portion and the width of the second circuit portion are lessthan a width of the third circuit portion.

In an embodiment, an absolute value of a difference between the width ofthe first circuit portion and the width of the second circuit portion isless than an absolute value of a difference between the width of thethird circuit portion and the width of the second circuit portion.

In an embodiment, a distance between the first circuit portion and thecenter of the anode portion is a third distance, a distance between thesecond circuit portion and the center of the anode portion is a fourthdistance, and an absolute value of a difference between the thirddistance and the fourth distance is less than the width of the firstcircuit portion or the width of the second circuit portion.

In an embodiment, the first circuit portion and the second circuitportion are disposed axisymmetrically with respect to a centerline, thecenterline passes through the center of the anode portion. The anodeportion is axisymmetric. The centerline is an axis of symmetry of theanode portion.

In an embodiment, the display panel further comprises a pixel circuitthat comprises a driving transistor and a light-emitting deviceelectrically connected to the driving transistor. The first circuittransmits a working voltage to the light-emitting device. The secondcircuit transmits a data voltage to the driving transistor.

In an embodiment, the first circuit portion comprises a firstsub-circuit portion located at a first circuit layer and a secondsub-circuit portion located at a second circuit layer. The secondcircuit portion is located at the first circuit layer or the secondcircuit layer. The first sub-circuit portion is electrically connectedto the second sub-circuit portion. An absolute value of a differencebetween a width of the first sub-circuit portion and a width of thesecond sub-circuit portion is less than an absolute value of adifference between the width of the first circuit portion and the widthof the second circuit portion.

In an embodiment, the driving transistor comprises an active portion, afirst gate portion located above the active portion, a second gateportion located above the first gate portion, and a source and drainportion located above the second gate portion and at the first circuitlayer.

In an embodiment, the display panel further comprises a firstplanarization layer disposed between the second circuit layer and thefirst circuit layer. The source and drain portion comprises a sourceelectrode and a drain electrode disposed at a same layer. The secondcircuit layer comprises a node portion corresponding to the drainelectrode. The node portion is electrically connected to the drainelectrode through a conductive material in a third via hole passingthrough the first planarization layer. The first sub-circuit portionlocated at the first circuit layer and the second sub-circuit portionlocated at the second circuit layer are electrically connected to eachother through a conductive material in a via hole passing through thefirst planarization layer.

In an embodiment, the second circuit layer is disposed between the firstcircuit layer and the anode portion, and the second circuit is locatedat the second circuit layer.

In an embodiment, a portion of the first circuit protruding beyond theanode portion comprises a third sub-circuit portion located at a thirdcircuit layer and a fourth sub-circuit portion located at a fourthcircuit layer. The third sub-circuit portion is electrically connectedto the fourth sub-circuit portion. The first circuit portion and thesecond circuit are both located at the third circuit layer or the fourthcircuit layer.

The present disclosure further provides a mobile terminal comprising aterminal body and any display panel as described above. The terminalbody is integrated with the display panel.

The present disclosure provides a display panel and a mobile terminal.The display panel comprises a substrate, an anode portion disposed onthe substrate, and a first circuit and a second circuit disposed betweenthe anode portion and the substrate. The first circuit is disposed closeto a first edge of the anode portion. The second circuit is disposedclose to a second edge of the anode portion. The first circuit comprisesa first circuit portion disposed corresponding to the anode portion. Thesecond circuit comprises a second circuit portion disposed correspondingto the anode portion. The first circuit portion and the second circuitportion are disposed on opposite sides of a center of the anode portion.A distance between the first circuit portion and the first edge is afirst distance. A distance between the second circuit portion and thesecond edge is a second distance. An absolute value of a differencebetween the first distance and the second distance is less than a widthof the first circuit portion or a width of the second circuit portion.In the present disclosure, the difference between the first distance andthe second distance is set to be sufficiently small. That is, a distancebetween a convex structure of the anode portion caused by the firstcircuit and one corresponding edge is equivalent to distance betweenanother convex structure of the anode portion caused by the secondcircuit and one corresponding edge, which improves symmetry of the twoconvex structures of the anode portion, thereby reducing deviation of alight-emitting angle of a light emitted by a light-emitting device.Therefore, a degree of asymmetry of a brightness or chromaticity viewingangle of the display panel is reduced, thereby improving displayquality.

BRIEF DESCRIPTION OF DRAWINGS

The present disclosure will be further described in detail below incombination with accompany drawings. It should be noted that theaccompanying drawings in the following description are only used toillustrate some embodiments of the present disclosure. For those skilledin the art, other drawings may be obtained from these accompanyingdrawings without creative labor.

FIG. 1 is a schematic cross-sectional view of a first type of a displaypanel according to an embodiment of the present disclosure.

FIG. 2 is a schematic top view of the first type of the display panelaccording to an embodiment of the present disclosure.

FIG. 3 is a schematic top view of a second type of a display panelaccording to an embodiment of the present disclosure.

FIG. 4 is a schematic cross-sectional view of the second type of thedisplay panel according to an embodiment of the present disclosure.

FIG. 5 is a schematic top view of a third type of a display panelaccording to an embodiment of the present disclosure.

FIG. 6 is a schematic cross-sectional view of the third type of thedisplay panel according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

Technical solutions in embodiments of the present disclosure will beclearly and completely described below in conjunction with accompanyingdrawings in the embodiments of the present disclosure. It is apparentthat the described embodiments are merely a part of the embodiments ofthe present disclosure and not all embodiments. All other embodimentsobtained by those skilled in the art based on the embodiments of thepresent disclosure without creative labor are within claimed scope ofthe present disclosure.

In a description of the present disclosure, it should be understood thatlocation or position relationships indicated by terms, such as “awayfrom”, “close to”, and “between”, are location or position relationshipsbased on illustration of the accompanying drawings. For example, “closeto” refers to a side of opposite sides of an object in the accompanyingdrawings that is closer to another object. “Between” refers to anyposition sandwiched between two objects in the accompanying drawings.The above location or position relationships are merely used fordescribing the present disclosure and simplifying the descriptioninstead of indicating or implying the indicated apparatuses or elementsshould have specified locations or be constructed and operated accordingto specified locations, and should not be intercepted as limitations tothe present disclosure.

Furthermore, it should be further noted that the accompanying drawingsonly illustrate structures that are closely related to the presentdisclosure, while omitting details not closely related to the presentdisclosure. The purpose is to simplify the accompanying drawings so thatfeatures are clear at a glance. An actual device is not exactly same asa device shown in the accompanying drawings, and the accompanyingdrawings are not a limitation of the actual device.

The present disclosure provides a display panel which comprises, but isnot limited to, the following embodiments and a combination thereof.

In an embodiment, as shown in FIG. 1 to FIG. 4 , a display panel 100comprising a substrate 807, an anode portion 30 disposed on thesubstrate 807, and a first circuit 10 and a second circuit 20 disposedbetween the anode portion 30 and the substrate 807. The first circuit 10is disposed close to a first edge 301 of the anode portion 30. Thesecond circuit 20 is disposed close to a second edge 302 of the anodeportion 30. The first circuit 10 comprises a first circuit portion 101disposed corresponding to the anode portion 30. The second circuit 20comprises a second circuit portion 201 disposed corresponding to theanode portion 30. The first circuit portion 101 and the second circuitportion 201 are disposed on opposite sides of a center of the anodeportion 30. A distance between the first circuit portion 101 and thefirst edge 301 is a first distance Dl. A distance between the secondcircuit portion 201 and the second edge 302 is a second distance D2. Anabsolute value of a difference between the first distance D1 and thesecond distance D2 is less than a width of the first circuit portion 101or a width of the second circuit portion 201.

Specifically, as shown in FIG. 4 , the display panel 100 comprises ananode layer comprising a plurality of anode portions 30 and alight-emitting layer disposed on the anode layer. The light-emittinglayer comprises a plurality of light-emitting portions 40 correspondingto the anode portions 30 in a one-to-one manner. Each of the anodeportions 30 is electrically connected to one correspondinglight-emitting portion 40 to control light emission of the correspondinglight-emitting portion 40. Furthermore, the display panel 100 furthercomprises a buffer layer 808, a transistor layer, and a cathode layer.The buffer layer 808 is disposed between the transistor layer and thesubstrate 807. The transistor layer is disposed on a side of the anodelayer away from the light-emitting layer. The cathode layer is disposedon a side of the light-emitting layer away from the anode layer. Thetransistor layer comprises a plurality of transistors 50 correspondingto the anode portions 30 in a one-to-one manner. Each of the transistors50 is electrically connected to one corresponding anode portion 30 tocontrol a voltage of the corresponding anode portion 30. Each of thelight-emitting portions 40 emits light through a current generated by avoltage difference between the corresponding anode portion 30 and thecathode layer. Moreover, some of the light-emitting portions 40 emittinglight of different colors may form a light-emitting unit. For example,each light-emitting unit may comprise, but is not limited to, alight-emitting portion 40 that emits red light, a light-emitting portion40 that emits green light, and a light-emitting portion 40 that emitsblue light.

It should be noted that, as shown in FIG. 1 to FIG. 3 , a plurality ofcircuits are disposed in different layers between the anode layer andthe substrate 807. When the circuits disposed in different layersbetween each of the anode portions 30 and the substrate 807 have poorsymmetry with respect to the anode portions 30, convex structures of theanode portions 30 caused by the circuits also have poor symmetry, whichcauses a light-emitting angle of the corresponding light-emittingportions 40 to shift, resulting in an asymmetrical brightness orchromaticity viewing angle of a displayed image.

Specifically, as shown in FIG. 1 to FIG. 3 , this embodiment isdescribed by taking an example in which the first circuit 10 and thesecond circuit 20 are disposed on the opposite sides of the center O ofthe anode portion 30 and a side of the anode portion 30 away from thecorresponding light-emitting portion 40. It should be noted that theanode portion 30 is not limited to be symmetric herein. When the anodeportion 30 is symmetric, the center O of the anode portion 30 can beunderstood as a midpoint between a midpoint of the first circuit portion101 in a length direction of the first circuit portion 101 and amidpoint of the second circuit portion 201 in a length direction of thesecond circuit portion 201. The first edge 301 can be understood as aside of the anode portion 30 that is close to a side of the firstcircuit 10 away from the center O of the anode portion 30. The secondedge 302 can be understood as a side of the anode portion 30 that isclose to a side of the second circuit 20 away from the center O of theanode portion 30. Sizes and shapes of the first edge 301, the secondedge 302, the first circuit portion 101, and the second circuit portion201 are not limited herein. It can be understood that in thisembodiment, the absolute value of the difference between the firstdistance D1 and the second distance D2 is less than the width of thefirst circuit portion 101 or the width of the second circuit portion201. The width of the first circuit portion 101 and the width of thesecond circuit portion 201 are relatively small, for example, may beless than the first distance D1, the second distance D2, and a distancebetween the first circuit portion 101 and the second circuit portion201. It can be understood herein that the difference between the firstdistance D1 and the second distance D2 is set to be sufficiently small.Moreover, the first distance D1 and the second distance D2 may be equalto each other. Therefore, this embodiment improves symmetry of the firstcircuit portion 101 and the second circuit portion 201 with respect tothe center O of the anode portion 30, which reduces deviation of alight-emitting angle of the corresponding light-emitting portion 40, andreduces asymmetry of a brightness or chromaticity viewing angle of thedisplayed image.

Specifically, the first circuit portion 101 may be divided into aplurality of dividing points arranged at equal intervals in the lengthdirection of the first circuit portion 101. At each of the dividingpoints, a vertical line perpendicular to a part of the first circuitportion 101 near the dividing point is drawn. A length of a part of eachvertical line between the first circuit portion 101 and the first edge301 may be used as a distance between one corresponding dividing pointand the first edge 301. The first distance D1 can be understood as anaverage value of distances between the first edge 301 and the dividingpoints of the first circuit portion 101 in the length direction of thefirst circuit portion 101. A line formed by connecting the dividingpoints may bisect the first circuit portion 101 in the length directionof the first circuit portion 101. Similarly, the second distance D2 canbe understood with reference to the above description. It should benoted that the first circuit portion 101 and the second circuit portion201 are located on the opposite sides of the center O of the anodeportion 30, but are not limited to the first circuit portion 101 and thesecond circuit portion 201 being parallel. For example, the firstcircuit portion 101 and the second circuit portion 201 may intersect, orextension lines of the first circuit portion 101 and the second circuitportion 201 may intersect. Furthermore, when circuits between the anodeportion 30 and the substrate 807 have three or more projections on theanode portion 30, if a number of the projections is even, every twoprojections may be considered as a set of projections. Two projectionsin each set of projections may satisfy a relationship between the firstcircuit portion 101 and the second circuit portion 201, or may besymmetric with respect to the center O of the anode portion 30. If thenumber of the projections is odd, every two projections may beconsidered as a set of projections. Two projections in each set ofprojections may satisfy a relationship between the first circuit portion101 and the second circuit portion 201, or may be symmetric with respectto the center O of the anode portion 30. An extra one projection may besymmetric with respect to the center O of the anode portion 30.

In an embodiment, as shown in FIG. 2 and FIG. 3 , the first circuit 10further comprises a third circuit portion 102 protruding beyond theanode portion 30, and the width of the first circuit portion 101 and thewidth of the second circuit portion 201 are less than a width of thethird circuit portion 102. Please refer to the above description, it canbe seen that in this embodiment, on the basis that the differencebetween the first distance D1 and the second distance D2 is set to besufficiently small, the width of the first circuit portion 101 and thewidth of the second circuit portion 201 are set to be less than a widthof a part of the first circuit 10 protruding beyond the anode portion30. It should be noted that a number of layers of different parts of thefirst circuit 10 and the second circuit 20 in a top view is not limitedherein, as long as the width of the first circuit portion 101 and thewidth of the third circuit portion 102 meet the above requirements inthe top view. It can be understood that, in this embodiment, under apremise that a width of at least a part of the second circuit 20corresponding to the anode portion 30 is less than the width of the partof the first circuit 10 protruding beyond the anode portion 30, thewidth of the first circuit portion 101 (i.e. a part of the first circuit10 corresponding to the anode portion 30) is also set to be less thanthe width of the third circuit portion 102 (i.e. the part of the firstcircuit 10 protruding beyond the anode portion 30). Widths of thedifferent parts of the first circuit 10 are set to be different, so thatthe width of the first circuit portion 101 and the width of the secondcircuit portion 201 are both set to be smaller. This also improves thesymmetry of the first circuit portion 101 and the second circuit portion201 with respect to the center O of the anode portion 30, therebyreducing the deviation of the light-emitting angle of the correspondinglight-emitting portion 40, and reduces the asymmetry of the brightnessor chromaticity viewing angle of the displayed image.

In an embodiment, as shown in FIG. 2 , an absolute value of a differencebetween the width of the first circuit portion 101 and the width of thesecond circuit portion 201 is less than an absolute value of adifference between the width of the third circuit portion 102 and thewidth of the second circuit portion 201. It should be noted thatregarding the aforementioned parameters such as the first distance D1and the second distance D2, the first circuit portion 101 is regarded asa line formed by connecting corresponding dividing points, and thesecond circuit portion 201 is regarded as a line formed by connectingcorresponding dividing points. That is, the difference between the widthof the first circuit portion 101 and the width of the second circuitportion 201 is not considered. When the width of the first circuitportion 101 and the width of the second circuit portion 201 are greatlydifferent, even if both the first distance D1 and the second distance D2meet the above requirements, a distance between the first edge 301 andone corresponding edge of the first circuit portion 101 and a distancebetween the second edge 302 and one corresponding edge of the secondcircuit portion 201 still have a large difference. This causes a certaindeviation of the light-emitting angle of the correspondinglight-emitting portion 40.

It can be understood that in this embodiment, the difference between thewidth of the first circuit portion 101 and the width of the secondcircuit portion 201 is set to be rather small. Herein, only the absolutevalue of the difference between the width of the third circuit portion102 and the width of the second circuit portion 201 is used as areference for description, which can eliminate an influence of thedifference between the width of the first circuit portion 101 and thewidth of the second circuit portion 201 on the parameters such as thefirst distance D1 and the second distance D2. Furthermore, the width ofthe first circuit portion 101 may be equal to the width of the secondcircuit portion 201.

In an embodiment, as shown in FIG. 1 to FIG. 3 , a distance between thefirst circuit portion 101 and the center O of the anode portion 30 is athird distance D3, and a distance between the second circuit portion 201and the center O of the anode portion 30 is a fourth distance D4. Anabsolute value of a difference between the third distance D3 and thefourth distance D4 is less than the width of the first circuit portion101 or the width of the second circuit portion 201. It should be notedthat, on the basis that the absolute value of the difference between thefirst distance D1 and the second distance D2 is less than the width ofthe first circuit portion 101 or the width of the second circuit portion201, the first circuit portion 101 and the second circuit portion 201have various distributions. For example, after the first circuit portion101 is determined, there may be a plurality of circuits corresponding toa plurality of projections meeting the above requirements on anotherside of the center O of the anode portion 30, which may be used as thesecond circuit portion 201. When the first distance D1 and the seconddistance D2 are equal, the deviation of the light-emitting angle of thecorresponding light-emitting portion 40 can be greatly improved.

It can be understood that after the first circuit portion 101 isdetermined, a degree of the difference between the third distance D3 andthe fourth distance D4 is further limited in this embodiment. Herein,only the width of the first circuit portion 101 or the width of thesecond circuit portion 201 is used as a reference for description. In aplurality of projections that meet the above requirement “the absolutevalue of the difference between the first distance D1 and the seconddistance D2 is less than the width of the first circuit portion 101 orthe width of the second circuit portion 201”, a plurality of circuitscorresponding to a plurality of projections whose distance from thecenter O of the anode portion 30 is close to the third distance D3 areselected as the second line portion 201, which makes a differencebetween the two sufficiently small. That is, this embodiment furthermakes the difference between the third distance D3 and the fourthdistance D4 smaller, which further improves the symmetry of the firstcircuit portion 101 and the second circuit portion 201 with respect tothe center O of the anode portion 30, thereby reducing the deviation ofthe light-emitting angle of the corresponding light-emitting portion 40,and reducing the asymmetry of the brightness or chromaticity viewingangle of the displayed image.

In an embodiment, as shown in FIG. 2 and FIG. 3 , the first circuitportion 101 and the second circuit portion 201 are disposedaxisymmetrically with respect to a centerline L. The centerline L passesthrough the center O of the anode portion 30. The anode portion 30 isaxisymmetric. The centerline L is an axis of symmetry of the anodeportion 30. Specifically, in this embodiment, the first circuit portion101 and the second circuit portion 201 are disposed to be axisymmetric.The first circuit portion 101 and the second circuit portion 201 aresymmetric with respect to the centerline L. That is, a shape of thefirst circuit portion 101 and a shape of the second circuit portion 201are same, and a distance between any point on the first circuit portion101 and the centerline L is equal to a distance between onecorresponding point on the second circuit portion 201 and the centerlineL. It can be understood that on the basis that the absolute value of thedifference between the first distance D1 and the second distance D2 isless than the width of the first circuit portion 101 or the width of thesecond circuit portion 201, in this embodiment, the centerline L passesthrough the center O of the anode portion 30, which further improves thesymmetry of the first circuit portion 101 and the second circuit portion201 with respect to the center O of the anode portion 30, therebyreducing the deviation of the light-emitting angle of the correspondinglight-emitting portion 40, and reducing the asymmetry of the brightnessor chromaticity viewing angle of the displayed image. Furthermore, thisembodiment further limits a shape of the anode portion 30. That is, theanode portion 30 is axisymmetric. Moreover, the first circuit portion101 and the second circuit portion 201 are disposed axisymmetricallywith respect to the anode portion 30, which further improves overallsymmetry of the anode portion 30, the first circuit portion 101, and thesecond circuit portion 201, thereby further reducing the deviation ofthe light-emitting angle of the corresponding light-emitting portion 40,and reducing the asymmetry of the brightness or chromaticity viewingangle of the displayed image.

In an embodiment, as shown in FIG. 2 to FIG. 5 , the display panel 100further comprises a pixel circuit. The pixel circuit comprises aplurality of driving transistors and a plurality of light-emittingdevices electrically connected to the driving transistors. The firstcircuit 10 transmits a working voltage to one correspondinglight-emitting device. The second circuit 20 transmits a data voltage toone corresponding driving transistor. The pixel circuit may be, but isnot limited to, a 7T1C circuit. The driving transistors may be thetransistors 50 shown in FIG. 4 . The light-emitting devices may be thelight-emitting portions 40 shown in FIG. 4 . Please refer to the abovedescription, it can be seen that each of the transistors 50 iselectrically connected to one corresponding anode portion 30. Theworking voltage of the first circuit 10 and the data voltage of thesecond circuit 20 can jointly control the voltage of the correspondinganode portion 30. The cathode layer may have a constant voltage. Each ofthe light-emitting portions 40 emits light through the current generatedby the voltage difference between the corresponding anode portion 30 andthe cathode layer.

Furthermore, as shown in FIG. 5 , a plurality of first circuits 10 asvoltage lines and a plurality of second circuits 20 as data lines may bedisposed in parallel. The anode portions 30 in a same column may beprovided with one corresponding first circuit 10 and one correspondingsecond circuit 20 on a side away from a light-emitting surface. Adirection in which the first circuits 10 and the second circuits 20extend may be same as a direction in which the anode portions 30 in thesame column are disposed. The first circuits 10 and the second circuits20 may be parallel to each other and disposed alternately. A distancebetween one first circuit 10 and one adjacent second circuit 20 isrelated to sizes of the anode portions 30 or a distance between twoadjacent anode portions 30. Herein, shapes and sizes of portions of thefirst circuits 10 and the second circuits 20 that do not overlap withthe anode portions 30 are not limited, as long as the first projections10 and the second projections 20 meet the above requirements. Shapes ofthe anode portions 30 may be same or different. Furthermore, shapes ofthe anode portions 30 that emit light of a same color may be set to besame.

In an embodiment, as shown in FIG. 1 to FIG. 4 , the first circuitportion 101 comprises a first sub-circuit portion located at a firstcircuit layer 60 and a second sub-circuit portion located at a secondcircuit layer 70. The second circuit portion 201 is located at the firstcircuit layer 60 or the second circuit layer 70. The first sub-circuitportion is electrically connected to the second sub-circuit portion. Anabsolute value of a difference between a width of the first sub-circuitportion and a width of the second sub-circuit portion is less than anabsolute value of a difference between the width of the first circuitportion 101 and the width of the second circuit portion 201.

Specifically, as shown in FIG. 4 , each of the transistors 50 comprisesan active portion, a first gate portion 503 located above the activeportion, a second gate portion 504 located above the first gate portion503, and a source and drain portion located above the second gateportion 524. The source and drain portion comprises a source electrode505 and a drain electrode 506 disposed at a same layer. The first gateportion 503 and the second gate portion 504 are electrically connected.The active portion comprises a main body part 501 and two doped parts502 disposed on two opposite sides of the main body part 501. The dopedparts 502 may comprise, but are not limited to, nitrogen element orphosphorus element. A first gate insulating portion 507 is disposedbetween the active portion and the first gate portion 503. A second gateinsulating portion 508 is disposed between the first gate portion 503and the second gate portion 504. A dielectric layer 509 is disposedbetween the second gate portion 504 and the source and drain portion.The first gate insulating portion 507, the second gate insulatingportion 508, and the dielectric layer 509 may all be disposed as a wholelayer. The source electrode 505 may be electrically connected to one ofthe doped parts 502 of one corresponding active portion through aconductive material in a first via hole 5051. The drain electrode 506may be electrically connected to the other doped part 502 of thecorresponding active portion through a conductive material in a secondvia hole 5061.

As shown in FIG. 4 and FIG. 6 , a plurality of the source and drainportions may be disposed at the first circuit layer 60. That is, thefirst sub-circuit portion may be disposed at a same layer as the sourceand drain portions. A first planarization layer 801 may be disposedbetween the second circuit layer 70 and the first circuit layer 60.Furthermore, the second circuit layer 70 comprises a plurality of nodeportions 702. That is, the second sub-circuit portion is disposed at asame layer as the node portions 702. The node portions 702 maycorrespond one-to-one to the drain electrodes 506. Each of the nodeportions 702 is electrically connected to one corresponding drainelectrode 506 through a conductive material in a third via hole 7011.The third via hole 7011 may pass through the first planarization layer801. Moreover, the first sub-circuit portion located at the firstcircuit layer 60 and the second sub-circuit portion located at thesecond circuit layer 70 may be electrically connected to each otherthrough a conductive material in a via hole 8011 passing through thefirst planarization layer 801.

It can be understood that on one hand, in this embodiment, the secondcircuit 20 is disposed at the first circuit layer 60 or the secondcircuit layer 70. That is, one of the first circuit layer 60 and thesecond circuit layer 70 that are provided with the first circuit 10 maybe selected to dispose the second circuit 20, so as to avoid disposingthe second circuit 20 at another layer to increase a thickness of thedisplay panel 100. This is conducive to lightening and thinning of thedisplay panel, and can reduce a thickness difference of convexstructures of the anode portion 30 caused by the first circuit 10 andthe second circuit 20, thereby reducing the deviation of thelight-emitting angle of the corresponding light-emitting portion 40. Onthe other hand, because the first circuit portion 101 is disposed at twolayers, and the second circuit portion 201 is disposed at one layer,there is a risk that a total width of the first circuit portion 101 andthe width of the second circuit portion 201 are significantly different.In this embodiment, only the absolute value of the difference betweenthe width of the first circuit portion 101 and the width of the secondcircuit portion 201 is used as a reference, and the absolute value ofthe difference between the width of the first sub-circuit portion andthe width of the second sub-circuit portion is less than the absolutevalue of the difference between the width of the first circuit portion101 and the width of the second circuit portion 201, so as to ensurethat a difference between the total width of the first circuit portion101 and the width of the second circuit portion 201 can still be small.Furthermore, the total width of the first circuit portion 101 may beequal to the width of the second circuit portion 201. Therefore, in thisembodiment, the first sub-circuit portion and the second sub-circuitportion may be electrically connected to make the first circuit 10 havea smaller impedance while avoiding increasing the total width of thefirst circuit portion 101, thereby reducing the deviation of thelight-emitting angle of the corresponding light-emitting portion 40, andreducing the asymmetry of the brightness or chromaticity viewing angleof the displayed image.

Furthermore, as shown in FIG. 4 , a second planarization layer 802 maycover the node portions 702. A plurality of pixel defining portions 803may be disposed on the second planarization layer 802. One anode portion30 and one light-emitting portion 40 on the anode portion 30 may bedisposed between two adjacent pixel defining portions 803. Anencapsulation layer may be disposed on the light-emitting portions 40and the pixel defining portions 803. The encapsulation layer maycomprise a first inorganic layer 804, an organic layer 805 on the firstinorganic layer 804, and a second inorganic layer 806 on the organiclayer 805. The first inorganic layer 804 and the second inorganic layer806 may be made of, but are not limited to, a mixture of silicon nitrideand silicon oxide. The substrate 807 is made of, but is not limited to,polyimide.

In an embodiment, as shown in FIG. 2 to FIG. 6 , the second circuitlayer 70 is disposed between the first circuit layer 60 and the anodeportions 30, and the second circuit 20 is located at the second circuitlayer 70. It should be noted that, according to the above description,the second circuit 20 transmits a data voltage to the transistor 50. Thesecond circuit 20 may be electrically connected to the source electrode505 or the drain electrode 506 of the transistor 50. A voltagetransmitted by the first gate portion 503 and the second gate portion504 of the transistor 50 is different from the data voltage transmittedby the second circuit 20. In this embodiment, the second circuit 20 isdisposed at the second circuit layer 70 that is farther from the firstgate portion 503 and the second gate portion 504, so that a distancebetween the second circuit 20 and the first gate portion 503 and adistance between the second circuit 20 and the second gate portion 504are relatively large. This can reduce a parasitic capacitance formedbetween the second circuit 20 and the first gate portion 503 and aparasitic capacitance formed between the second circuit 20 and thesecond gate portion 504, thereby reducing interference between differentvoltages.

In an embodiment, as shown in FIG. 2 , FIG. 3 , and FIG. 5 , a portionof the first circuit 10 protruding beyond the anode portion 30 comprisesa third sub-circuit portion 1031 located at a third circuit layer and afourth sub-circuit portion 1032 located at a fourth circuit layer. Thethird sub-circuit portion 1031 is electrically connected to the fourthsub-circuit portion 1032. The first circuit portion 101 and the secondcircuit 20 are both located at the third circuit layer or the fourthcircuit layer. Specifically, the third circuit layer is the firstcircuit layer 60 and the fourth circuit layer is the second circuitlayer 70 as an example for description herein.

Please refer to FIG. 4 , FIG. 6 , and the above description, it can beseen that the third sub-circuit portion 1031 located at the firstcircuit layer 60 and the fourth sub-circuit portion 1032 located at thesecond circuit layer 70 may also be electrically connected by aconductive material filled in the via hole 8011 in the firstplanarization layer 801. Specifically, as shown in FIG. 2 to FIG. 4 , inthis embodiment, the first circuit portion 101 is disposed at the firstcircuit layer 60 or the second circuit layer 70. That is, the firstcircuit portion 101 does not occupy the first circuit layer 60 and thesecond circuit layer 70 at a same time, so that a total thickness of thefirst circuit portion 101 can be smaller. It is understandable that onthe basis that the second circuit 20 is disposed at the first circuitlayer 60 or the second circuit layer 70, in this embodiment, the firstcircuit portion 101 and the second circuit 20 are disposed at a samelayer, which can avoid a large thickness difference of the convexstructures of the anode portion 30 caused by the first circuit 10 andthe second circuit 20, so that flatness of two parts of the anodeportion 30 corresponding to the first circuit portion 101 and the secondcircuit portion 201 tends to be same. This reduces the deviation of thelight-emitting angle of the corresponding light-emitting portion 40, andreduces the asymmetry of the brightness or chromaticity viewing angle ofthe displayed image.

Specifically, the first circuit 10 transmits a working voltage to thelight-emitting device, and the second circuit 20 transmits a datavoltage to the driving transistor. The third circuit layer is the firstcircuit layer 60, and the fourth circuit layer is the second circuitlayer 70. The second circuit layer 70 is disposed between the firstcircuit layer 60 and the anode portion 30. Accordingly, the firstcircuit portion 101 and the second circuit 20 may be disposed at thesame fourth circuit layer. According to the above description, in thisembodiment, the asymmetry of the brightness or chromaticity viewingangle of the displayed image can be reduced, and the parasiticcapacitance formed between the second circuit 20 and the first gateportion 503 and the parasitic capacitance formed between the secondcircuit 20 and the second gate portion 504 can also be reduced, therebyreducing the interference between the different voltages

The present disclosure further provides a mobile terminal. The mobileterminal comprises a terminal body and any display panel as describedabove. The terminal body is integrated with the display panel.

The present disclosure provides a display panel and a mobile terminal.The display panel comprises a substrate, an anode portion disposed onthe substrate, and a first circuit and a second circuit disposed betweenthe anode portion and the substrate. The first circuit is disposed closeto a first edge of the anode portion. The second circuit is disposedclose to a second edge of the anode portion. The first circuit comprisesa first circuit portion disposed corresponding to the anode portion. Thesecond circuit comprises a second circuit portion disposed correspondingto the anode portion. The first circuit portion and the second circuitportion are disposed on opposite sides of a center of the anode portion.A distance between the first circuit portion and the first edge is afirst distance. A distance between the second circuit portion and thesecond edge is a second distance. An absolute value of a differencebetween the first distance and the second distance is less than a widthof the first circuit portion or a width of the second circuit portion.In the present disclosure, the difference between the first distance andthe second distance is set to be sufficiently small. That is, a distancebetween a convex structure of the anode portion caused by the firstcircuit and one corresponding edge is equivalent to distance betweenanother convex structure of the anode portion caused by the secondcircuit and one corresponding edge, which improves symmetry of the twoconvex structures of the anode portion, thereby reducing deviation of alight-emitting angle of a light emitted by a light-emitting device.Therefore, a degree of asymmetry of a brightness or chromaticity viewingangle of the display panel is reduced, thereby improving displayquality.

The display panel and the mobile terminal provided by the embodiments ofthe present disclosure are described in detail above. The presentdisclosure uses specific examples to describe principles and embodimentsof the present application. The above description of the embodiments isonly for helping to understand the technical solutions of the presentdisclosure and its core ideas. It should be understood by those skilledin the art that they can modify the technical solutions recited in theforegoing embodiments, or replace some of technical features in theforegoing embodiments with equivalents. These modifications orreplacements do not cause essence of corresponding technical solutionsto depart from the scope of the technical solutions of the embodimentsof the present disclosure.

1. A display panel, comprising: a substrate; an anode portion disposedon the substrate; and a first circuit and a second circuit disposedbetween the anode portion and the substrate, wherein the first circuitis disposed close to a first edge of the anode portion, the secondcircuit is disposed close to a second edge of the anode portion, thefirst circuit comprises a first circuit portion disposed correspondingto the anode portion, the second circuit comprises a second circuitportion disposed corresponding to the anode portion, the first circuitportion and the second circuit portion are disposed on opposite sides ofa center of the anode portion, a distance between the first circuitportion and the first edge is a first distance, a distance between thesecond circuit portion and the second edge is a second distance, anabsolute value of a difference between the first distance and the seconddistance is less than a width of the first circuit portion or a width ofthe second circuit portion, a distance between the first circuit portionand the center of the anode portion is a third distance, a distancebetween the second circuit portion and the center of the anode portionis a fourth distance, and an absolute value of a difference between thethird distance and the fourth distance is less than the width of thefirst circuit portion or the width of the second circuit portion; andwherein the first circuit further comprises a third circuit portionprotruding beyond the anode portion, and the width of the first circuitportion and the width of the second circuit portion are less than awidth of the third circuit portion.
 2. The display panel according toclaim 1, wherein an absolute value of a difference between the width ofthe first circuit portion and the width of the second circuit portion isless than an absolute value of a difference between the width of thethird circuit portion and the width of the second circuit portion. 3.The display panel according to claim 1, wherein the first circuitportion and the second circuit portion are disposed axisymmetricallywith respect to a centerline, the centerline passes through the centerof the anode portion, the anode portion is axisymmetric, and thecenterline is an axis of symmetry of the anode portion.
 4. The displaypanel according to claim 1, further comprising a pixel circuit thatcomprises a driving transistor and a light-emitting device electricallyconnected to the driving transistor, wherein the first circuit transmitsa working voltage to the light-emitting device, and the second circuittransmits a data voltage to the driving transistor.
 5. The display panelaccording to claim 4, wherein the first circuit portion comprises afirst sub-circuit portion located at a first circuit layer and a secondsub-circuit portion located at a second circuit layer, the secondcircuit portion is located at the first circuit layer or the secondcircuit layer, the first sub-circuit portion is electrically connectedto the second sub-circuit portion, and an absolute value of a differencebetween a width of the first sub-circuit portion and a width of thesecond sub-circuit portion is less than an absolute value of adifference between the width of the first circuit portion and the widthof the second circuit portion.
 6. The display panel according to claim5, wherein the driving transistor comprises an active portion, a firstgate portion located above the active portion, a second gate portionlocated above the first gate portion, and a source and drain portionlocated above the second gate portion and at the first circuit layer. 7.The display panel according to claim 5, wherein the second circuit layeris disposed between the first circuit layer and the anode portion, andthe second circuit is located at the second circuit layer.
 8. Thedisplay panel according to claim 1, wherein the third circuit portioncomprises a third sub-circuit portion located at a third circuit layerand a fourth sub-circuit portion located at a fourth circuit layer, thethird sub-circuit portion is electrically connected to the fourthsub-circuit portion, and the first circuit portion and the secondcircuit are both located at the third circuit layer or the fourthcircuit layer.
 9. A display panel, comprising: a substrate; an anodeportion disposed on the substrate; and a first circuit and a secondcircuit disposed between the anode portion and the substrate, whereinthe first circuit is disposed close to a first edge of the anodeportion, the second circuit is disposed close to a second edge of theanode portion, the first circuit comprises a first circuit portiondisposed corresponding to the anode portion, the second circuitcomprises a second circuit portion disposed corresponding to the anodeportion, the first circuit portion and the second circuit portion aredisposed on opposite sides of a center of the anode portion, a distancebetween the first circuit portion and the first edge is a firstdistance, a distance between the second circuit portion and the secondedge is a second distance, and an absolute value of a difference betweenthe first distance and the second distance is less than a width of thefirst circuit portion or a width of the second circuit portion.
 10. Thedisplay panel according to claim 9, wherein the first circuit furthercomprises a third circuit portion protruding beyond the anode portion,and the width of the first circuit portion and the width of the secondcircuit portion are less than a width of the third circuit portion. 11.The display panel according to claim 10, wherein an absolute value of adifference between the width of the first circuit portion and the widthof the second circuit portion is less than an absolute value of adifference between the width of the third circuit portion and the widthof the second circuit portion.
 12. The display panel according to claim9, wherein a distance between the first circuit portion and the centerof the anode portion is a third distance, a distance between the secondcircuit portion and the center of the anode portion is a fourthdistance, and an absolute value of a difference between the thirddistance and the fourth distance is less than the width of the firstcircuit portion or the width of the second circuit portion.
 13. Thedisplay panel according to claim 9, wherein the first circuit portionand the second circuit portion are disposed axisymmetrically withrespect to a centerline, the centerline passes through the center of theanode portion, the anode portion is axisymmetric, and the centerline isan axis of symmetry of the anode portion.
 14. The display panelaccording to claim 9, further comprising a pixel circuit that comprisesa driving transistor and a light-emitting device electrically connectedto the driving transistor, wherein the first circuit transmits a workingvoltage to the light-emitting device, and the second circuit transmits adata voltage to the driving transistor.
 15. The display panel accordingto claim 14, wherein the first circuit portion comprises a firstsub-circuit portion located at a first circuit layer and a secondsub-circuit portion located at a second circuit layer, the secondcircuit portion is located at the first circuit layer or the secondcircuit layer, the first sub-circuit portion is electrically connectedto the second sub-circuit portion, and an absolute value of a differencebetween a width of the first sub-circuit portion and a width of thesecond sub-circuit portion is less than an absolute value of adifference between the width of the first circuit portion and the widthof the second circuit portion.
 16. The display panel according to claim15, wherein the driving transistor comprises an active portion, a firstgate portion located above the active portion, a second gate portionlocated above the first gate portion, and a source and drain portionlocated above the second gate portion and at the first circuit layer.17. The display panel according to claim 16, further comprising a firstplanarization layer disposed between the second circuit layer and thefirst circuit layer, wherein the source and drain portion comprises asource electrode and a drain electrode disposed at a same layer, thesecond circuit layer comprises a node portion corresponding to the drainelectrode, the node portion is electrically connected to the drainelectrode through a via hole passing through the first planarizationlayer, and the first sub-circuit portion located at the first circuitlayer and the second sub-circuit portion located at the second circuitlayer are electrically connected to each other through another via holepassing through the first planarization layer.
 18. The display panelaccording to claim 15, wherein the second circuit layer is disposedbetween the first circuit layer and the anode portion, and the secondcircuit is located at the second circuit layer.
 19. The display panelaccording to claim 9, wherein the third circuit portion comprises athird sub-circuit portion located at a third circuit layer and a fourthsub-circuit portion located at a fourth circuit layer, the thirdsub-circuit portion is electrically connected to the fourth sub-circuitportion, and the first circuit portion and the second circuit are bothlocated at the third circuit layer or the fourth circuit layer.
 20. Amobile terminal, comprising a terminal body and a display panelintegrated with the terminal body, wherein the display panel comprises:a substrate; an anode portion disposed on the substrate; and a firstcircuit and a second circuit disposed between the anode portion and thesubstrate, wherein the first circuit is disposed close to a first edgeof the anode portion, the second circuit is disposed close to a secondedge of the anode portion, the first circuit comprises a first circuitportion disposed corresponding to the anode portion, the second circuitcomprises a second circuit portion disposed corresponding to the anodeportion, the first circuit portion and the second circuit portion aredisposed on opposite sides of a center of the anode portion, a distancebetween the first circuit portion and the first edge is a firstdistance, a distance between the second circuit portion and the secondedge is a second distance, and an absolute value of a difference betweenthe first distance and the second distance is less than a width of thefirst circuit portion or a width of the second circuit portion.